Originally Posted by
sonicbum
Correct, but a PAN does not allow You to deviate from the acknowledged clearance, hence a MAYDAY is required.
- I'm executing an unpublished missed approach procedure from low altutude with a sharp turn because the aircraft on takeoff roll is still on the runway.
- I'm reducing speed from M 0.85 to M 0.78 due to unexpected turbulence.
- I'm following TCAS RA.
These are all deviations from the acknowledged clearance. Shall I declare emergency with MAYDAY?